Key Benefits of Gravity Die Casting
Superior Strength: The slower filling leads to denser parts with very low porosity.
Lower Tooling Costs: GDC moulds are generally simpler and more affordable than high-pressure dies, making them a cost-effective choice for medium-scale production (roughly 250 to 50, 000 units per year).
Better Surface Integrity: While not as smooth as high-pressure casting, it provides a significantly better finish than sand casting.
Versatility: It can accommodate complex internal shapes using sand cores, a hybrid method often called 'semi-permanent' mould casting.